BZX84B11-HE3-08

Single Zener Diodes Overview

The BZX84B11-HE3-08 is a silicon planar Zener diode from Vishay Semiconductors, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 11 V with a tight tolerance of ±2%. The device operates at a test current of 5 mA and features a maximum reverse leakage current of 0.1 µA. Electrical characteristics include a dynamic resistance of 20 Ω and a temperature coefficient ranging from 5 to 9 x 10⁻⁴/°C. It supports a power dissipation of up to 500 mW and functions within a junction temperature range of -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• High precision voltage regulation with ±2% tolerance for stable reference applications
• Robust electrostatic discharge protection exceeding 8 kV via human body model
• Automotive-grade reliability through AEC-Q101 qualification standards

Single Zener Diodes Applications

• Precision voltage reference circuits requiring tight tolerance
• Overvoltage protection stages in automotive electronic modules
• Clamping applications in high-reliability signal conditioning systems

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix to confirm the presence of AEC-Q101 automotive qualification and RoHS compliance status. Ensure that the procurement documentation explicitly references the Vishay datasheet document number 86338 for accurate electrical parameter validation. Confirm that the component matches the specified SOT-23 package dimensions and marking codes before integration into production workflows.

Single Zener Diodes Selection Notes

Select this component when a precise 11 V reference is required alongside strict automotive reliability standards. The ±2% tolerance distinguishes it from standard commercial variants, making it suitable for sensitive analog interfaces. Evaluate the thermal management requirements against the 500 mW dissipation limit to ensure proper heat sinking or footprint design on the printed circuit board.

Single Zener Diodes Part Context

This part belongs to the BZX84 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series utilizes silicon planar technology and offers a wide range of standardized voltage grades. The specific HE3_A suffix indicates compliance with automotive quality standards, differentiating it from the base E3 commercial grade versions within the same physical package family.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same manufacturer family include BZX84B11-E3-08 for commercial grade applications without automotive requirements.